Answer

Boilers tripping electrical circuits can stem from various issues that compromise both system functionality and safety. Here are nine common causes:

  1. Faulty Pump: A malfunctioning internal pump may short-circuit or develop leaks, leading to electrical faults.
  2. Water Leaks: Leaks within the boiler can cause electrical components to short out, often due to failing parts like diverter valves.
  3. Defective Thermostat: A malfunctioning thermostat can cause continuous operation or overheating, potentially tripping electrical circuits.
  4. Electrical Wiring Issues: Damaged or dangerous internal wiring, such as screws contacting live wires, can result in electrical trips.
  5. Overloaded Circuit: Connecting the boiler to an already burdened electrical circuit can cause overloads, leading to circuit breaker trips.
  6. Failed Internal Components: The breakdown of internal parts can cause electrical faults, disrupting boiler operation.
  7. Moisture in Electrical Components: Exposure to moisture can impair electrical components, increasing the risk of faults.
  8. Faulty Heating Element: A damaged heating element can cause electrical shorts, leading to circuit breaker trips.
  9. Poor Connections: Loose or corroded electrical connections can cause intermittent faults, resulting in tripped circuits.

Only a qualified and registered engineer should work on your boiler so if in doubt, ask a professional.

You can read more about this in our article here:

https://www.electricalfaultsfixed.com/blog/why-boiler-tripping-electrics-9-reasons